Table 2

Distribution of prognostic markers by HER2 level based on χ2 analysis

MarkerAll casesNormal (%)Intermediate (%)High (%)P2)
n%Normal vs. intermediateHigh vs. intermediate
Nodes positive2680.81710.1891
 1–314554605443
 4–97026232733
 ≥105320171923
Tumor size (cm)2380.30330.8911
 <210243354448
 2–58134443232
 >55523212420
Nuclear grade2690.04940.0011
 High9736453060
Estrogen receptor2630.5325<0.0001
 Negative10540393477